...
Go to Magento Admin panel - Customers - All Customers
Mark checkbox next to customer you want to manually synchronize
Click the “Action” menu - “Sync with Salesforce”
...
Click the “Select - Sync with Salesforce“ action on the Customer record
...
Go to Magento Admin panel - Customers - All Customers
Click the “Select - Edit” link from the Action column for the customer you want to manually synchronize
Select the “Salesforce” tab - click the “Sync Customer” button
...